TY  - BOOK
AU  - Williams, R. Bruce
TI  - Cooperative learning : a standard for high achievement
SN  - 9780970166555
SN  - 200729911
U1  - 371.36 BRU 
PY  - 2002///
CY  - Thousand Oaks, CA
PB  - Corwin
KW  - Group work in education - United States
N1  - Includes bibliographical references (p. 65-68)
ER  -